uint32      ANT1        =  1
uint32      ANT2        =  2
uint32      EXTERNAL    =  3
uint32      USER        =  4
uint32      MARK1       =  5
uint32      MARK2       =  6
uint32      GIMBAL      =  7
uint32      MARK3       =  9
uint32      MARK4       = 10

uint32 type
